Wb. Hou et al., THERMAL-PROPERTIES OF A NEW ORGANOMETALLIC NONLINEAR-OPTICAL MATERIAL, TRIALLYLTHIOUREA MERCURY BROMIDE (ATMB), Materials letters, 18(4), 1994, pp. 207-210
Crystallographic, thermal expansion and specific heat data obtained fo
r a single crystal of a new organometallic nonlinear optical material,
triallylthiourea mercury bromide (ATMB), are reported. It is trigonal
(space and point groups are R3c and C3v respectively) with lattice pa
rameters a=b=11.580 Angstrom, c=28.939 Angstrom, V=3375 Angstrom(3). T
here are six formula units per cell and the density is 2.10 g/cm(3). T
he second harmonic generation intensity, obtained on a powder sample,
is 2.5 times greater than that of urea.